Stanford's Joslyn Tinkle, center, drives through the attempted defense by Arizona's Reiko Thomas, left, during the second half of an NCAA college basketball game at McKale Center in Tucson, Ariz., Saturday, Feb. 4, 2012. Stanford won 91-51. (AP Photo/John Miller)

Photo: John Miller, Associated Press

Stanford's Joslyn Tinkle, center, drives through the attempted...

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Stanford's Nnemkadi Ogwumike (30) shoots for two over the defense of Arizona's Aley Rohde (44) during the second half of an NCAA college basketball game at McKale Center in Tucson, Ariz., Saturday, Feb. 4, 2012. Stanford won 91-51. (AP Photo/John Miller)

Photo: John Miller, Associated Press

Stanford's Nnemkadi Ogwumike (30) shoots for two over the defense...

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Arizona's Reiko Thomas (25) look to pass against the pressing defense of Stanford's Chiney Ogwumike, right, during the second half of an NCAA college basketball game at McKale Center in Tucson, Ariz., Saturday, Feb. 4, 2012. Stanford won 91-51.

Photo: John Miller, Associated Press

Arizona's Reiko Thomas (25) look to pass against the pressing...

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Arizona's Davellyn Whyte (1) shoots for two while being guarded by Stanford's Toni Kokenis (31) during the first half of an NCAA college basketball game at McKale Center in Tucson, Ariz., Saturday, Feb. 4, 2012. Stanford won 91-51.

Photo: John Miller, Associated Press

Arizona's Davellyn Whyte (1) shoots for two while being guarded by...

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Stanford's head coach Tara VanDerveer congratulates Nnemkadi Ogwumike, right, as she comes off the court agaisnt Arizona during the first half of an NCAA college basketball game at McKale Center in Tucson, Ariz., Saturday, Feb. 4, 2012. Stanford won 91-51.

Photo: John Miller, Associated Press

Stanford's head coach Tara VanDerveer congratulates Nnemkadi...

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Stanford's Joslyn Tinkle (44) drives against Arizona's Aley Rohde, right, under the basket during the second half of an NCAA college basketball game at McKale Center in Tucson, Ariz., Saturday, Feb. 4, 2012. Stanford won 91-51.

Photo: John Miller, Associated Press

Stanford's Joslyn Tinkle (44) drives against Arizona's Aley Rohde,...

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Arizona's Reiko Thomas (25) works the ball against Stanford's Chiney Ogwumike (13) during the first half of an NCAA college basketball game at McKale Center in Tucson, Ariz., Saturday, Feb. 4, 2012. Stanford won 91-51.

TUCSON - Joslyn Tinkle and Stanford have won 17 straight games since their only loss of the season.

This balanced blowout was one of the easy ones.

Tinkle had a career-high 22 points and matched her career best with 11 rebounds, and the Cardinal had five starters score in double figures in a 91-51 victory over Arizona on Saturday.

Stanford (20-1, 11-0 Pac-12) hasn't lost since Nov. 4 at Connecticut. But the previous two victories were close ones.

"The past few games we've not played to the best of our abilities," Tinkle said. "We know what we're capable of, and we haven't pushed ourselves there. We really knew coming into this game what we had to do to prove to everyone, to prove to ourselves, that we are more capable and we can reach to a higher level."

The Cardinal hit their first five shots and made 57 percent of their first-half attempts in taking a 51-31 lead at the break.

"When your teammates get going and you're happy for them and you're happy for yourself, you get that confidence," Tinkle said. "Obviously hitting those shots gave us a confidence boost, and from there we didn't let up."

Stanford beat the Wildcats for the 21st time in a row, a streak that dates to 2004.

"We've kind of been playing people closer than we wanted to," Stanford coach Tara VanDerveer said. "I like the fact we were able to get everybody in and everyone contributed."

"This is great momentum for us," VanDerveer said. "We've got a long way to go, but I'm really excited about getting major contributions from different people. We depend a lot on Nneka and Chiney, and it's great to have Jos play so well. Nneka and Chiney are so unselfish and so excited about other people doing well.."